18QHTF21-13.508-PD

Overview

The 18QHTF21-13.508-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 13.508 MHz and utilizes LVCMOS output logic levels. The device is designed for surface mount applications, featuring a compact 4-SMD, No Lead package configuration. It supports a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption during inactive periods. This component is engineered for reliable clock signal generation in electronic circuits requiring precise timing synchronization.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing synchronization
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against your design requirements before procurement. Confirm that the 1.8V supply voltage aligns with your system's power architecture. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions related to the surface mount technology used in this component.

Selection Notes

Select this oscillator when a 13.508 MHz clock source is required with low voltage operation. Consider the LVCMOS output compatibility with your downstream digital logic families. Evaluate the need for power-down capabilities if energy efficiency is a priority. Verify that the physical dimensions of the 4-SMD package fit within your available board space.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard clock oscillators. The '18QHTF21' prefix indicates the specific series and package type, while '-13.508' denotes the nominal frequency. The '-PD' suffix typically signifies the inclusion of power-down or standby control features. These components are widely used in consumer electronics and industrial equipment.

Replacement Considerations

Direct substitutes must match the 13.508 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical specifications such as current consumption and stability. Cross-reference with other manufacturers offering similar surface mount oscillators if Mercury Electronics parts are unavailable.